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Ok, that kind of makes sense. But as an extreme example let's say you moved out to earth sun L4 leaving from earth and moving at 1MPH*.

Once you got there, you're there besides station keeping. So in theory there's no deltaV required? That's what confused me.

Of course moving at 1MPH you'd be expending energy fighting earth's gravity until you got there. But I think that's a separate issue.



If you accelerate by 1MPH you're not in the same orbit anymore. It's not like driving on earth, where you can go faster along the same path by pushing the accelerator down; the speed you're moving at is a component of your orbit.




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